PURPOSE: To dry a plate-shaped gel body in a short time and to obtain the title product free from warp by drying the gel body under specified conditions when the gel body formed by converting a soln. of starting materials including an organometallic compd. into gel is dried and sintered to obtain the title product.
CONSTITUTION: When a soln. of starting materials including an organometallic compd. such as methyl orthosilicate is converted into gel to form a plate-shaped gel body and this gel body is dried and sintered to produce the title product, the gel body is dried after both the principal faces of the gel body are covered with porous bodies having a low coefft. of friction. Each of the porous bodies may be formed by laminating a polychlorofluorocarbon filter sheet on urethane sponge.
MIZUNO TOSHIAKI
Next Patent: SUPERCONDUCTING COIL, MANUFACTURE THEREOF, AND COIL BOBBIN USED FOR SUPERCONDUCTING COIL